- Father: Atli HASTEINSSON
- Birth: ABT 917, Tradarholt, Stokkseyri, Arness, Iceland
- Death: ABT 998
Ancestors of Thordur ATLASON
/-Atli HUNDOLFSSON
/-Hasteinn ATLASON
/-Atli HASTEINSSON
| \-Thora OLVISDOTTIR
Thordur ATLASON
Descendants of Thordur ATLASON
1 Thordur ATLASON
=Thorunn ASGEIRSDOTTIR Marriage: ABT 936, Stokkseyri, Arness, Iceland
2 Thorgils THORDARSON
=Helga THORODDSDOTTIR Marriage: ABT 991, Stokkseyri, Arness, Iceland
3 Grimur THORGILSSON
=(Unknown)
4 Ingjaldur GRIMSSON
=(Unknown)
=Thorey THORVARDSDOTTIR
3 Thorny THORGILSDOTTIR
=Bjarni THORSTEINSSON
4 Skeggi BJARNASON
=Halldora GRIMSDOTTIR